| 摘要 |
PROBLEM TO BE SOLVED: To prevent liquid from leaking by a fall, shock, or the like in use in a foam discharge vessel having a vessel body and a discharge head which can be reciprocated up and down and for discharging foam from the discharge port of the discharge head by reciprocating the discharge head. SOLUTION: In this vessel in which air G and contents liquid L are sent from a gas chamber 12 and a liquid chamber 13 in a vessel body 10 respectively to a foam forming part 21 to mix them and to foam the mixture and the foam is discharged from a discharge port 22, the gas chamber 12 consists of a bottomed cylinder part 14 whose upper part communicates with outdoor air and a piston part 23 inserted into the cylinder part 14. In the peripheral wall of the cylinder part 14, a communicative hole 1 for introducing outdoor air into the vessel body 10 is formed. When a discharge head 20 is at an upper dead point of reciprocating motion, the communicative hole 1 is closed by a closing part 2 formed on the peripheral wall of the piston part 23. |
